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<li class="level1"><a href="#cpp-ignoredirectives">Cpp.ignoredirectives</a></li>
<li class="level1"><a href="#cpp-ignoretokens">Cpp.ignoretokens</a></li>
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<h1 class="title">C++ Specific Configuration Variables</h1>
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<p>The C++ specific configuration variables are provided to avoid erroneous documentation due to non-standard C++ constructs.</p>
<a name="cpp-ignoredirectives-variable"></a><a name="cpp-ignoredirectives"></a>
<h2 id="cpp-ignoredirectives">Cpp.ignoredirectives</h2>
<p>The <code>Cpp.ignoredirectives</code> variable makes QDoc ignore the specified non-standard constructs, within C++ source code.</p>
<p>If not specified by the <code><a href="23-qdoc-configuration-cppvariables.html#cpp-ignoretokens">Cpp.ignoretokens</a></code> or <code><a href="23-qdoc-configuration-cppvariables.html#cpp-ignoredirectives">Cpp.ignoredirectives</a></code> variables, non-standard constructs (typically macros) can result in erroneous documentation.</p>
<pre class="cpp plain">

  Cpp.ignoredirectives = Q_DECLARE_INTERFACE \
                         Q_DECLARE_OPERATORS_FOR_FLAGS \
                         Q_DECLARE_PRIVATE \
                         Q_DECLARE_PUBLIC \
                         Q_DISABLE_COPY \
                         Q_DUMMY_COMPARISON_OPERATOR \
                         Q_ENUMS \
                         Q_FLAGS \
                         Q_INTERFACES \
                         __attribute__

</pre>
<p>makes sure that when processing the code below, for example, QDoc will simply ignore the 'Q_ENUMS' and 'Q_FLAGS' expressions:</p>
<pre class="cpp">

  <span class="keyword">class</span> Q_CORE_EXPORT <span class="type"><a href="../qtcore/qt.html">Qt</a></span> {
      Q_OBJECT
      Q_ENUMS(Orientation TextFormat BackgroundMode
              DateFormat ScrollBarPolicy FocusPolicy
              ContextMenuPolicy CaseSensitivity
              LayoutDirection ArrowType)
      Q_ENUMS(ToolButtonStyle)
      Q_FLAGS(Alignment)
      Q_FLAGS(Orientations)
      Q_FLAGS(DockWidgetAreas)

    <span class="keyword">public</span>:
      <span class="operator">.</span><span class="operator">.</span><span class="operator">.</span>
  };

</pre>
<p>The <a href="../qtcore/qobject.html#Q_OBJECT">Q_OBJECT</a> macro, however, is an exception: QDoc recognizes this particular non-standard construct, so there is no need specifying it using the <code><a href="23-qdoc-configuration-cppvariables.html#cpp-ignoredirectives">Cpp.ignoredirectives</a></code> variable.</p>
<p>Regarding the Q_CORE_EXPORT macro; see the documentation of the <code><a href="23-qdoc-configuration-cppvariables.html#cpp-ignoretokens">Cpp.ignoretokens</a></code> variable.</p>
<p>See also <a href="23-qdoc-configuration-cppvariables.html#cpp-ignoretokens">Cpp.ignoretokens</a>.</p>
<a name="cpp-ignoretokens-variable"></a><a name="cpp-ignoretokens"></a>
<h2 id="cpp-ignoretokens">Cpp.ignoretokens</h2>
<p>The <code>Cpp.ignoretokens</code> variable makes QDoc ignore the specified non-standard constructs, within C++ source code.</p>
<p>If not specified by the <code><a href="23-qdoc-configuration-cppvariables.html#cpp-ignoretokens">Cpp.ignoretokens</a></code> or <code><a href="23-qdoc-configuration-cppvariables.html#cpp-ignoredirectives">Cpp.ignoredirectives</a></code> variables, non-standard constructs (typically macros) can result in erroneous documentation.</p>
<p>In <a href="21-2-qtgui-qdocconf.html">qtgui.qdocconf</a>:</p>
<pre class="cpp plain">

  Cpp.ignoretokens = QAXFACTORY_EXPORT \
                     QM_EXPORT_CANVAS \
                     ..&#x2e;
                     Q_COMPAT_EXPORT \
                     Q_CORE_EXPORT \
                     Q_EXPLICIT \
                     Q_EXPORT \
                     ..&#x2e;
                     Q_XML_EXPORT

</pre>
<p>makes sure that when processing the code below, for example, QDoc will simply ignore the 'Q_CORE_EXPORT' expression:</p>
<pre class="cpp">

  <span class="keyword">class</span> Q_CORE_EXPORT <span class="type"><a href="../qtcore/qt.html">Qt</a></span> {
      Q_OBJECT
      Q_ENUMS(Orientation TextFormat BackgroundMode
              DateFormat ScrollBarPolicy FocusPolicy
              ContextMenuPolicy CaseSensitivity
              LayoutDirection ArrowType)
      Q_ENUMS(ToolButtonStyle)
      Q_FLAGS(Alignment)
      Q_FLAGS(Orientations)
      Q_FLAGS(DockWidgetAreas)
    <span class="keyword">public</span>:
      <span class="operator">.</span><span class="operator">.</span><span class="operator">.</span>
  };

</pre>
<p>Regarding the <a href="../qtcore/qobject.html#Q_OBJECT">Q_OBJECT</a>, Q_ENUMS and Q_FLAGS macros; see the documentation of the <code><a href="23-qdoc-configuration-cppvariables.html#cpp-ignoredirectives">Cpp.ignoredirectives</a></code> variable.</p>
<p>See also <a href="23-qdoc-configuration-cppvariables.html#cpp-ignoredirectives">Cpp.ignoredirectives</a>.</p>
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